Hole Locators | McMaster-Carr

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456 Products

Measuring and Inspecting

Threaded Hole Location Gauges

Pinpoint the true center of threaded holes to precisely align and measure parts

70 products

Probe Styli

Attach to CMM probes, CNC probes, or FARO arms to inspect workpieces

110 products

Machine Tool Indicator Contact Points

Replace the contact point on your machine tool indicator

3 products

Coordinate Measurement Machine Probes

Take 3D measurements of workpieces on your CMM or CNC machine to inspect for quality

50 products

Rivet Hole Locators

Mark even spacing for rivets and other fasteners before you drill

1 product

Alignment Pins

Line up holes in sheet metal, I-beams, and angle irons for bolting, riveting, and welding

148 products

Pipe Flange Aligners

Line up flange holes so they bolt securely and connections won’t leak

17 products

Calibration Spheres

Test your CMM probe and stylus against a precise reference point before you start inspecting

7 products

Fabricating and Machining

Drill Bit Guides

Drill precise holes without building a fixture

15 products

Drill Guides

Pair with handheld drills to create precise holes, no drill press required

2 products

Gasket Cutters

Create circular gaskets from pliable material and soft metal

16 products

Building and Machinery Hardware

T-Slotted Framing Drill Jigs

Guide bits to drill straight, accurate holes in T-slotted rails

13 products